WO2004027804A3 - Monitoring system for high-voltage switchboards - Google Patents

Monitoring system for high-voltage switchboards Download PDF

Info

Publication number
WO2004027804A3
WO2004027804A3 PCT/EP2003/009960 EP0309960W WO2004027804A3 WO 2004027804 A3 WO2004027804 A3 WO 2004027804A3 EP 0309960 W EP0309960 W EP 0309960W WO 2004027804 A3 WO2004027804 A3 WO 2004027804A3
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
differential pressure
gas
elements
monitoring
Prior art date
Application number
PCT/EP2003/009960
Other languages
German (de)
French (fr)
Other versions
WO2004027804A2 (en
Inventor
Norbert Derenda
Original Assignee
Comde Gmbh
Norbert Derenda
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Comde Gmbh, Norbert Derenda filed Critical Comde Gmbh
Priority to AU2003260496A priority Critical patent/AU2003260496A1/en
Publication of WO2004027804A2 publication Critical patent/WO2004027804A2/en
Publication of WO2004027804A3 publication Critical patent/WO2004027804A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/56—Gas reservoirs
    • H01H33/563—Gas reservoirs comprising means for monitoring the density of the insulating gas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/26—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences

Abstract

The invention relates to a monitoring system for monitoring the density in a gas chamber of a high-voltage switchboard, said chamber being filled with a quenching gas or insulation gas. When the density of the gas in the gas chamber reaches certain limit values, the system delivers monitoring signals that allow the high-voltage switchboard to be monitored. Said system contains a measuring chamber (22), which can be connected to the gas chamber to be monitored, a reference chamber (24) filled with a reference gas, detection elements (34), which respond to a change in the differential pressure between the pressure in the measuring chamber (22) and the pressure in the reference chamber (24), elements for determining one or several limit values of the differential pressure and signal generation elements, which trigger a signal, if the differential pressure falls below or exceeds a limit value. A differential pressure sensor (34) is impinged by the pressure in the measuring chamber (22) and the pressure in the reference chamber (24) and delivers an analogue output signal in accordance with the differential pressure. The output signal of the differential pressure sensor (34) impinges upon a signal processing device. The latter contains threshold value elements for generating one or more threshold values, comparator elements for comparing the output signal of the differential pressure sensor (34) with the threshold value(s) and for generating response signals and signal generation elements which are impinged upon by the response signals and which are used to generate monitoring signals in accordance with the response signals.
PCT/EP2003/009960 2002-09-11 2003-09-08 Monitoring system for high-voltage switchboards WO2004027804A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003260496A AU2003260496A1 (en) 2002-09-11 2003-09-08 Monitoring system for high-voltage switchboards

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10242443A DE10242443B4 (en) 2002-09-11 2002-09-11 Monitoring arrangement for high-voltage switchgear
DE10242443.8 2002-09-11

Publications (2)

Publication Number Publication Date
WO2004027804A2 WO2004027804A2 (en) 2004-04-01
WO2004027804A3 true WO2004027804A3 (en) 2004-08-05

Family

ID=32009820

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/009960 WO2004027804A2 (en) 2002-09-11 2003-09-08 Monitoring system for high-voltage switchboards

Country Status (3)

Country Link
AU (1) AU2003260496A1 (en)
DE (1) DE10242443B4 (en)
WO (1) WO2004027804A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2906653B1 (en) 2006-09-28 2008-12-19 Areva T & D Sa DEVICE FOR MONITORING THE OPERATION OF A DENSIMETER FOR MEDIUM AND HIGH VOLTAGE ELECTRICAL APPARATUS AND METHOD FOR MONITORING THE OPERATION OF A DENSIMETER
DE102014211801B4 (en) 2014-01-09 2016-06-16 Comde-Derenda GmbH Monitoring unit for leak detection with adjustable PCB
DE102014201576A1 (en) 2014-01-29 2015-07-30 Alstom Technology Ltd. Electrical switching device
DE102016204637A1 (en) 2015-04-07 2016-10-13 Comde-Derenda GmbH Monitoring unit with at least one optical waveguide
DE102016214198A1 (en) * 2016-08-02 2018-02-08 Siemens Aktiengesellschaft Monitoring a gas pressure in a gas space

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2529733A1 (en) * 1975-07-01 1977-01-13 Siemens Ag Control switch for HV gas blast circuit breaker - operates in dependence on gas density and has two diaphragm controlled contacts
US4581941A (en) * 1985-03-18 1986-04-15 Controls Company Of America Combined electronic pressure transducer and power switch
US5315878A (en) * 1992-02-21 1994-05-31 Dragerwerk Ag Measuring head for a pressure-measuring device with a pressure sensor for the simultaneous actuation of a switching contact
EP0637114A1 (en) * 1993-07-30 1995-02-01 Consolidated Electronics, Inc. A high voltage transmission switching apparatus with gas monitoring device
US5502435A (en) * 1994-04-06 1996-03-26 Ralston; Douglas E. Method and system for monitoring circuit breaker gas pressure
JPH11111122A (en) * 1997-10-03 1999-04-23 Saginomiya Seisakusho Inc State monitoring device of insulation gas and method for controlling the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH413958A (en) * 1964-10-23 1966-05-31 Bbc Brown Boveri & Cie Gas circulation system for compressed gas circuit breakers
DE1941615A1 (en) * 1969-08-14 1971-02-25 Siemens Ag Control switch working depending on the density of a gas
DE4218926A1 (en) * 1992-06-10 1993-12-16 Asea Brown Boveri Device for measuring a gas density
EP0726630B1 (en) * 1995-02-08 1999-10-27 Gec Alsthom T Et D Sa Method and device for determining the density of an insulating gas in an electrical apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2529733A1 (en) * 1975-07-01 1977-01-13 Siemens Ag Control switch for HV gas blast circuit breaker - operates in dependence on gas density and has two diaphragm controlled contacts
US4581941A (en) * 1985-03-18 1986-04-15 Controls Company Of America Combined electronic pressure transducer and power switch
US5315878A (en) * 1992-02-21 1994-05-31 Dragerwerk Ag Measuring head for a pressure-measuring device with a pressure sensor for the simultaneous actuation of a switching contact
EP0637114A1 (en) * 1993-07-30 1995-02-01 Consolidated Electronics, Inc. A high voltage transmission switching apparatus with gas monitoring device
US5502435A (en) * 1994-04-06 1996-03-26 Ralston; Douglas E. Method and system for monitoring circuit breaker gas pressure
JPH11111122A (en) * 1997-10-03 1999-04-23 Saginomiya Seisakusho Inc State monitoring device of insulation gas and method for controlling the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 09 30 July 1999 (1999-07-30) *

Also Published As

Publication number Publication date
AU2003260496A1 (en) 2004-04-08
AU2003260496A8 (en) 2004-04-08
WO2004027804A2 (en) 2004-04-01
DE10242443B4 (en) 2004-11-04
DE10242443A1 (en) 2004-06-03

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